123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266 |
- <?php namespace Dever\String;
- class Sql
- {
- public static function setColOrder($order)
- {
- $this->colOrder = $order;
- }
- public static function desc($table)
- {
- return 'DESC ' . $table;
- }
- public static function truncate($table)
- {
- return 'TRUNCATE TABLE `' . $table . '`';
- }
- public static function opt($table)
- {
- return 'OPTIMIZE TABLE `' . $table . '`';
- }
- public static function explain($sql)
- {
- return 'EXPLAIN ' . $sql;
- }
- public static function showIndex($table)
- {
- return 'SHOW INDEX FROM ' . $table;
- }
- public static function create($config)
- {
- $sql = 'DROP TABLE IF EXISTS `' . $config['table'] . '`;CREATE TABLE IF NOT EXISTS `' . $config['table'] . '`(';
- $struct = array('id' => array('name' => 'ID', 'type' => 'int(11)'),'cdate' => array('name' => 'cdate', 'type' => 'int(11)'));
- $struct = array_merge($struct, $config['struct']);
- foreach ($struct as $k => $v) {
- $sql .= self::createField($k, $v) . ',';
- }
- $sql = rtrim($sql, ',') . ')';
- if (isset($config['auto'])) {
- $sql .= ' AUTO_INCREMENT = ' . $config['auto'];
- }
- if (isset($config['type'])) {
- $sql .= ' ENGINE = ' . $config['type'] . ';';
- }
- return $sql . ' COMMENT="'.$config['name'].'"';
- }
- public static function createField($name, $set)
- {
- $field = '`' . $name . '` ' . strtoupper($set['type']);
- if ($name == 'id') {
- $field .= 'UNSIGNED AUTO_INCREMENT PRIMARY KEY NOT NULL';
- } elseif (isset($set['default']) && $set['default']) {
- $field .= ' NOT NULL DEFAULT "' . $set['default'] . '"';
- } elseif (strpos($set['type'], 'int') !== false || strpos($set['type'], 'float') !== false || strpos($set['type'], 'decimal') !== false || strpos($set['type'], 'double') !== false) {
- $field .= ' NOT NULL DEFAULT 0';
- } else {
- $field .= ' NULL';
- }
- if (isset($set['name'])) {
- $field .= ' COMMENT \'' . $set['name'] . '\'';
- }
- return $field;
- }
- public static function alter($table, $struct, $data)
- {
- $sql = array();
- $alter = 'ALTER TABLE `' . $table . '` ';
- foreach ($data as $v) {
- $field = $v['Field'];
- if ($field != 'id') {
- $set = $struct[$field] ?? false;
- if ($set) {
- if ($set['type'] != $v['Type'] || (isset($set['default']) && $set['default'] != $v['Default'])) {
- $sql[] = $alter . ' CHANGE `' . $field . '` `' . $field . '` ' . self::createField($field, $set);
- } else {
- unset($struct[$field]);
- }
- } else {
- $sql[] = $alter . ' DROP `' . $field . '`';
- }
- }
- }
- if ($struct) {
- foreach ($struct as $k => $v) {
- $sql[] = $alter . ' ADD ' . self::createField($k, $v);
- }
- }
- return implode(';', $sql);
- }
- public static function index($table, $index, $del = array())
- {
- $sql = array();
- $alter = 'ALTER TABLE `' . $table . '` ';
- foreach ($del as $v) {
- if ($v['Key_name'] != 'PRIMARY') {
- $sql[] = $alter . ' DROP INDEX ' . $v['Key_name'];
- }
- }
- if ($index) {
- foreach ($index as $k => $v) {
- $t = 'INDEX';
- if (strpos($v, '.')) {
- list($v, $t) = explode('.', $v);
- }
- $sql[] = $alter . ' ADD ' . strtoupper($t) . ' ' . $k . ' (' . $v . ')';
- }
- }
- return implode(';', $sql);
- }
- public static function partition($table, $partition, $index)
- {
- $state = true;
- foreach ($index as $k => $v) {
- if ($v['Key_name'] == 'PRIMARY' && $v['Column_name'] == 'cdate') {
- $state = false;
- }
- }
- $sql = '';
- if ($state) {
- return 'ALTER TABLE `' . $table . '` DROP PRIMARY KEY, ADD PRIMARY KEY (`id`, `cdate`) USING BTREE;ALTER TABLE `' . $table . '` PARTITION BY RANGE (cdate) (PARTITION p'.$partition.' VALUES LESS THAN ('.$partition.'));';
- } else {
- return 'ALTER TABLE `' . $table . '` ADD PARTITION (PARTITION p'.$partition.' VALUES LESS THAN ('.$partition.'));';
- }
- }
- public static function select($table, $param, &$bind, $set = array(), $field = array())
- {
- $col = '*';
- $rule = '';
- if (isset($set['col'])) {
- $col = $set['col'];
- }
- if (isset($set['join'])) {
- $temp = explode('_', $table);
- $prefix = $temp[0] . '_' . $temp[1] . '_';
- $table .= ' AS ' . $temp[2];
- foreach ($set['join'] as $k => $v) {
- $table .= ' ' . $v['type'] . ' ' . $prefix . $v['table'] . ' AS ' . $v['table'] . ' ON ' . $v['on'];
- }
- }
- if (isset($set['group'])) {
- $rule .= ' GROUP BY ' . $set['group'];
- }
- if (isset($set['order'])) {
- $rule .= ' ORDER BY ' . $set['order'];
- }
- if (isset($set['limit'])) {
- if (is_array($set['limit'])) {
- $table .= ' inner join (select id from ' . $table . self::where($param, $bind, $field) . $rule . ' limit ' . $set['limit'][0].','.$set['limit'][1].') as t on '.$table.'.id=t.id';
- $rule = '';
- $param = false;
- } else {
- $rule .= ' LIMIT ' . $set['limit'];
- }
- }
- return 'SELECT ' . $col . ' FROM ' . $table . self::where($param, $bind, $field) . $rule;
- }
- public static function where($param, &$bind, $field = array())
- {
- if ($param) {
- $first = $second = '';
- if (is_array($param)) {
- $i = 0;
- foreach ($param as $k => $v) {
- if (strpos($k, '#')) {
- $k = trim($k, '#');
- }
- if ($k == 'or' || $k == 'and') {
- $first_link = $second_link = '';
- foreach ($v as $k1 => $v1) {
- if (is_array($v1)) {
- self::field($second_link, $bind, $i, $k1, $v1[0], $v1[1], $field);
- } else {
- self::field($first_link, $bind, $i, $k1, '=', $v1, $field);
- }
- }
- $first_link = ltrim($first_link, ' and ');
- $second .= ' ' . $k . ' (' . $first_link . $second_link . ')';
- } else {
- if (is_array($v)) {
- self::field($second, $bind, $i, $k, $v[0], $v[1], $field);
- } else {
- self::field($first, $bind, $i, $k, '=', $v, $field);
- }
- }
- }
- return ' WHERE ' . ltrim($first . $second, ' and ');
- } elseif (is_numeric($param)) {
- return ' WHERE id = ' . $param;
- } else {
- return ' WHERE ' . $param;
- }
- } else {
- return '';
- }
- }
- private static function field(&$s, &$b, &$i, $k, $e, $v, $f)
- {
- if ($f && empty($f[$k]) && strpos('id,cdate', $k) === false) {
- return;
- }
- $s .= ' and ';
- $p = ':'.$k.$i;
- $k = '`'.$k.'`';
- if (strpos($e,'in') !== false) {
- $s .= $k.$e.'('.$p.')';
- } elseif ($e == 'like') {
- $s .= 'instr('.$k.','.$p.')'.' > 0';
- } elseif ($e == 'group') {
- $v = ','.$v.',';
- $s .= 'instr(concat(",",'.$k.',","),'.$p.')' . ' > 0';
- } elseif ($e == 'between') {
- $b[$p.'_e'] = $v[1];
- $v = $v[0];
- $s .= $k.' between '.$p.' and '.$p.'_e';
- } else {
- $s .= $k.$e.$p;
- }
- $b[$p] = $v;
- $i++;
- }
- public static function insert($table, $data, &$bind, $field)
- {
- $sql = 'INSERT INTO `' . $table . '` SET ';#IGNORE
- foreach ($data as $k => $v) {
- if ($field && empty($field[$k]) && strpos('id,cdate', $k) === false) {
- continue;
- }
- $sql .= '`' . $k . '`=:' . $k . ',';
- $bind[':'.$k] = $v;
- }
- $sql = rtrim($sql, ',');
- return $sql;
- }
- public static function update($table, $param, $data, &$bind, $field)
- {
- $i = 0;
- $sql = 'UPDATE `' . $table . '` SET ';
- foreach ($data as $k => $v) {
- if ($field && empty($field[$k]) && strpos('id,cdate', $k) === false) {
- continue;
- }
- $a = '';
- if (is_array($v)) {
- $a = $v[1];
- $v = $v[0];
- }
- $sql .= '`' . $k . '`=`' . $k . '`' . $a . ':' . $k . ',';
- $bind[':'.$k] = $v;
- }
- return rtrim($sql, ',') . self::where($param, $bind, $field);
- }
- public static function delete($table, $param, &$bind, $field)
- {
- return 'DELETE FROM `' . $table . '`' . self::where($param, $bind, $field);
- }
- public static function inserts($table, $param)
- {
- $num = $param['num'] ?? 1;
- $sql = 'INSERT INTO `' . $table . '` (' . $param['field'] . ') VALUES ';
- foreach ($param['value'] as $k => $v) {
- for ($i = 1; $i <= $num; $i++) {
- $insert[] = '(' . $v . ')';
- }
- }
- $sql .= implode(',', $insert) . ',';
- return rtrim($sql, ',');
- }
- }
|